Aftermarket Stereo with Stock Amp

[IFeelYourPain 10+ year member]

I have a 94 Lincoln Continental, in which I am going to wire a Sony single din aftermarket radio, but I am having trouble with getting the right parts, since it has a stock amp.

Receiver Wiring Harness For select 1989-2000 vehicles at Crutchfield.com

^^ The above wiring harness shows 4 RCA plugs, and my aftermarket head unit only has 2 outputs for my sub, in which case I will be using my sub... so I can't use those ports.

I also found this one:

HARNESS METRA 70-5514 Ford Into Car Wire Harness Sadio wiring harness AMP BYPASS SYSTEM. This product is for a car radio installations allows the installer to wire an aftermarket radio into a car without cutting and splicing the factory radio harness

In which it doesn't use RCA jacks. I am just not sure on which to use, which will sound better, ect.

Now in my Miata I used this:

Scosche OEM Amplifier Adapter 1993-up Mazda at Crutchfield.com

I don't know if there is anything similar, but any info would be nice.

Click to read more...

 

[dappa5 10+ year member]

easiest way is to use the 1st one w/ "y" adapters the output on the rear of h/u if selectable (rear/sw) so make sure on rear/full range and you'll be fine

the second is a three piece harness the front two will connect your h/u to car and the last piece will simply bypass the factory amp by "jumping" it i usually use a standard harness and just bypass the amp myself but if you want "plug and play" both of those will work but #2 will be easier and can be returned to stock easier

 

[nismos14 5,000+ posts]

To do it correctly use the 2nd option, to do it correctly and easily get a HU with 6 high voltage preouts.

 

[IFeelYourPain 10+ year member]

You guys mean this right?

HARNESS METRA 70-5514 Ford Into Car Wire Harness Sadio wiring harness AMP BYPASS SYSTEM. This product is for a car radio installations allows the installer to wire an aftermarket radio into a car without cutting and splicing the factory radio harness

And do they both bypass the amp? Is there anyway to use the factory amp?

I believe this one did use the factory amp in my Miata:

Scosche OEM Amplifier Adapter 1993-up Mazda at Crutchfield.com

 

[nismos14 5,000+ posts]

WAit hold on.

 

[nismos14 5,000+ posts]

This is what you need CAR RADIO/STEREO PREMIUM SOUND WIRE HARNESS INSTALL PLUG ~ METRA 70-5510 | eBay

 

[IFeelYourPain 10+ year member]

But where do the rca plugs go? My aftermarket head unit only has 2 port and I am going to be using them for subwoofer.

 

[nismos14 5,000+ posts]

Buy a new radio //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Or get this: Scosche OEM Amplifier Adapter 1993-up Mazda at Crutchfield.com

 

[maylar 10+ year member]

So it seems you need front and rear preouts on the HU - if you don't have those you can use a pair of LOC's off the HU speaker outputs. Hope you have room in that dash...

 

[nismos14 5,000+ posts]

jesus, this is not that difficult.

Get this: Scosche OEM Amplifier Adapter 1993-up Mazda at Crutchfield.com

Use the speaker level outputs from the HU, attach them to the input end of the above adapter, then connect the outputs from that adapter to the metra harness into the vehicle. Then, you have your signal. Also be sure to connect the remote wires to not only your amp, but also the metra harness so the oem amp turns on.

 

[IFeelYourPain 10+ year member]

I have a LINCOLN!

 

[nismos14 5,000+ posts]

Doeget anout he mazda harness get the harness you need and get the scosche oem4. Sorry thought you could figure that part out.

 

[IFeelYourPain 10+ year member]

I've already searched for it, I can't find one... =[

EDIT: Ohhhh I think I was mistaking the Scosche part with the wiring harness. So I just use the OEM Amplifier adapter I already have and install it with wiring harness for my Lincoln, right?

 

[nismos14 5,000+ posts]

Exactly!

 

[2007rustanggt 10+ year member]

Good lord this is stressful to read.//content.invisioncic.com/y282845/emoticons/*******.gif.a649d21efc0d1fd4890a6428166586c1.gif