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Car Audio Help (For Infinity Systems)

iloveboost

Proven Member
46
1
Jul 25, 2014
Vacaville, California
I have 99 GST (Spyder) with the the stock Infinity system. I tried to search and find some information on selecting a deck but I couldn't really find the answer I need. I am not trying to do anything major here. I am just trying to put something in that has an aux or BT so I cant stream music from my phone. I do not want to use an external FM modulated unit as that sacrifices sound quality too much. I have used a Scosche Blue Fusion module on my Avalanche with great success (it has Bose with separate amps similar to infinity). I wasn't really expecting much from Scosche but amazon was clearing it out for around 50 bucks and turns out it was easy to install with the factory radio and even works with the steering wheel controls. Now amazon is selling the Scosche BT1200 unit (similar to what I previously purchased for my truck) and I wonder if anyone here has tried to use it?

If that thing wont work what does it look like for installing a deck. It seems (from what I have read) that the Infinity head unit is just a receiver and each speaker has its own 2 Ohm amp. I replaced the 6.5s & 6x9s with some mid grade Sony speakers because the original infinitys were rotted out. The original tweets still sound ok and I am not in a hurry to replace those. My concern is that a newer deck might require rewiring everything to run off its amp instead of the separates. Is there a way to connect a regular deck that will work with the stock wiring and amps? I am ok with the current sound quality just planning on going with something that has an aux, BT and a USB port.

Also I know that the stock unit is a double DIN, is anyone able to use a dash kit that splits the space into two slots, one for a stereo deck and maybe another for a turbo timer (planned for future)?
 

DJ Raydiate

Proven Member
611
13
May 27, 2010
Jacksonville, Florida
There is only one stock amp and that is under the passenger seat. You can get a factory wiring instal kit to utilize the factory amp, Metra 70-7003 receiver wiring harness.
Here is a ddin to din adapter.

The Infinity amp has built in crossovers that make the sound system layout like this:

6x9s(rears) = full range
6.5s(doors) = mid range
tweets(dash) = high range

In order to use the dash speakers you will need to either:

Use the stock amp with the correct adapter.
Figure out which wires go to the dash speakers using the factory wiring.
Run new wires down into the dash for the speakers to the radio. The last two are not recommended without the use of a high pass filter of some sort.
 
Last edited:

jimsgsx

Proven Member
812
103
Oct 21, 2013
toppenish, Washington
Just go to a stereo store. Buy a stereo and let them get it done. Most install for free when you buy one. I have a kenwood and they put the divider in so now i have a place to put my change and whatnot right under stereo.
 

iloveboost

Proven Member
46
1
Jul 25, 2014
Vacaville, California
I have 99 GST (Spyder) with the the stock Infinity system. I tried to search and find some information on selecting a deck but I couldn't really find the answer I need. I am not trying to do anything major here. I am just trying to put something in that has an aux or BT so I cant stream music from my phone. I do not want to use an external FM modulated unit as that sacrifices sound quality too much. I have used a Scosche Blue Fusion module on my Avalanche with great success (it has Bose with separate amps similar to infinity). I wasn't really expecting much from Scosche but amazon was clearing it out for around 50 bucks and turns out it was easy to install with the factory radio and even works with the steering wheel controls. Now amazon is selling the Scosche BT1200 unit (similar to what I previously purchased for my truck) and I wonder if anyone here has tried to use it?

If that thing wont work what does it look like for installing a deck. It seems (from what I have read) that the Infinity head unit is just a receiver and each speaker has its own 2 Ohm amp. I replaced the 6.5s & 6x9s with some mid grade Sony speakers because the original infinitys were rotted out. The original tweets still sound ok and I am not in a hurry to replace those. My concern is that a newer deck might require rewiring everything to run off its amp instead of the separates. Is there a way to connect a regular deck that will work with the stock wiring and amps? I am ok with the current sound quality just planning on going with something that has an aux, BT and a USB port.

Also I know that the stock unit is a double DIN, is anyone able to use a dash kit that splits the space into two slots, one for a stereo deck and maybe another for a turbo timer (planned for future)?

I went with the items you recommended and everything went fine. Only needed to do some small mods to get the ddin to din kit installed. Everything works great. The infinity 6.5s and 6x9s were rotten (typical for a convertible). I was also disappointed with the stock Infiniti's paper cones. I went with some basic 4 Ohm Sonys that can handle the 2 Ohm output. I am fairly impressed with the 15 year old amp's ability. I can run my phone and music now!

Thanks for all the help.[DOUBLEPOST=1412722056][/DOUBLEPOST]
Just go to a stereo store. Buy a stereo and let them get it done. Most install for free when you buy one. I have a kenwood and they put the divider in so now i have a place to put my change and whatnot right under stereo.

Yeah, I don't have any real good stereo shops out here ( prob have to go out to Sac to find one). I gave Best Buy the opportunity but all they carried in receivers were all iphone compatible and I have android, so I had to order a deck. In any case with the adapter cable for the infinity amp it was really easy and I didn't have to rewire stuff. Maybe we will see in the future if I think I need more.
 

jimsgsx

Proven Member
812
103
Oct 21, 2013
toppenish, Washington
I went with the items you recommended and everything went fine. Only needed to do some small mods to get the ddin to din kit installed. Everything works great. The infinity 6.5s and 6x9s were rotten (typical for a convertible). I was also disappointed with the stock Infiniti's paper cones. I went with some basic 4 Ohm Sonys that can handle the 2 Ohm output. I am fairly impressed with the 15 year old amp's ability. I can run my phone and music now!

Thanks for all the help.[DOUBLEPOST=1412722056][/DOUBLEPOST]

Yeah, I don't have any real good stereo shops out here ( prob have to go out to Sac to find one). I gave Best Buy the opportunity but all they carried in receivers were all iphone compatible and I have android, so I had to order a deck. In any case with the adapter cable for the infinity amp it was really easy and I didn't have to rewire stuff. Maybe we will see in the future if I think I need more.
Yea same here. I got a kenwood with iphone crap on it. My tab3 still plugs into it though so it works.
 
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