Did I get the wrong one, the pins dont match. On one theres 2 wires going into the same pin. Im confused.

 

Start with this.

 

At least you got the right antenna adapter! ANYWAY.............

Now, determine the pinout of the plug on the car's harness and then look at your adapter and how it is connected/wired to the new head unit and make sure you have it configured for the car's harness. In the Limited (which you obviously have) you need:

• All eight wires in Plug "B"
• Many of the wires in Plug "A"
• You need a switched output from the new head unit to enable the amplifier and power the preamp in the antenna (if you want the radio to work) - see the diagrams below. Most (maybe all?) modern aftermarket units have an output for driving the preamp and amplifier, look in your manual for it.

You can't do this unless you understand what the wires all do. Maybe these will help:

 

Here is the diagram from my '660's manual. Your manual should have a similar diagram.
The best way is to take the documents I provided you and the manual for your head unit and sit down and draw your OWN diagram, get it all out on paper first (took me five minutes). THEN go to the car and make your connections between the harness you bought and the head unit you bought.

See the line below: "Join the same color wires together"???? That is sometimes WRONG. THIS is why you calmly sit down and make a diagram and figure out what color wire goes to what color wire!

 

This was my parts list:
Porsche Volkswagen Mercedes Audi Vw Ford Radio Removal Tool Set 2 Keys
Scosche VW01B Power/Speaker Connector for 1986-Up Volkswagen
Metra 40-EU10 VW /BMW/Euro Car to Male Motorola Vehicle Antenna Adapter
Clarion M303 Marine CD-USB-MP3 Receiver


I did not cut the Crossfire harness, made an adapter cord using the stub harness that came with the radio and the VW01B instead so easy to go back to stock radio.

 

Still dont understand...

 

This is where I'm at... Am I doing something wrong?

 

Think I see the problem. A Limited with the power amp has no rear speaker connections from the head unit, Just four front speaker wires. To get front/rear you need to modify the Y connections at the power amp under the passenger seat. I never bothered.

 

Do I have to take the seat off?

 

The amp is located at the passengers feet.. pull the carpet back from under the dash.. You will have to cut and splice in new wire speaker leads to the head unit. Went through all this with my coupe and didn't bother with the two roadsters we have. Your rears "are" working as is.. reach around and feel them if in doubt. You just don't have "fade" control.

 

Nevermind its under the dash, got it.

 

Ok, what wires do I cut / splice on the amp?

 

https://www.crossfireforum.org/forum...-channels.html

 

I believe its the yellow and blue pairs of wires I gotta splice the HU to, correct?

 

Post 13's red text is a link to the thread you want to read.


Now, here is something funny - I've owned three Roadsters in the past 8 years and I never actually LOOKED at those diagrams I posted - I had no idea that we were driving the four channel amp with two channels. It just never occurred to me that we had no fade control.

My SE is a Base, it came with no speakers behind the seats. So when I put the JVC in there, I added rear speakers and wired up all (now six) speakers in the car directly to the new head. The four door speakers are wired to "front" and the added rear speakers are wired to "rear".

Sorry, i'ts been a long day at work and I'm burnt out. If you read thru the documentation (which really means that other thread) you'll get this figured out.

I'm tired, off to eat then write my daily report.............................

 

That post says he cut a pair of blue and a pair of yellow but the pins numbers are all 4 blue..

 

In general, speaker wires for a particular speaker will be a solid color for the positive and the same color with either a black or white stripe for the negative.

 

The problem is your stereo. Most Pioneer's are considered "lower end radios" only putting out 2 volts on the RCA outputs. I learned this the hard way by going through 2 models and months of research/calls to Crutchfield.

Someone told me the other day on the Facebook group about the RCA output power and that was it. I ordered a Kenwood with 4 volts RCA output and everything is good now.

 

M303 is rated 18W RMS x 4 Channels at 4 ohms and 1% THD+N - fed into the Limited's amp I never run over 1/2 vol and am hearing impaired.