I want to replace radio and speakers on my 89 automatic I know about wiring with boss system My question is if I replace system will it cause problems with any other system in car or will I get code light. I have read as much as I can but still confused by some of the discussions such as the use of 10,000 ohm resister in wiring

Thanks in advance

Mike

 

I changed out my Bose on my 88 two years ago. I do have the factory electrical manual, that helps. If you are just replacing the speakers and the Bose you don't need to run new wiring. Just disconnect the Bose wires at the amps and behind the radio. The Bose speaker wires are a dull gray with a color that runs circular around the wire like a candy cane. You have to cut them and attach to the speaker direct. I adapted 4 in. speakers in the doors and 6x9's in the rear. I went with a DVD system but USB with all your recordings on a Stick is good too.

 

You will not get a CEL in an 89.

 

the code only applies to the later C4s with a "CCM" - Chassis Control Module.

It looks for the head unit... makes sure it happy or something...

You will not get a code with an 89.

Also, if you are going to gut the system, do it right... remove and replace everything. The wire is just too old, too thin and too lame to be using with high output amps and such. A good 16 gauge auto speaker wire is my experienced advice...

oh, I have been installing car audio for 30+ years. I have been around the block and have been burned by bad ideas...

use good wire, good ground and keep the RCAs away from any power source (I like running mine down centre console, but that's me... Run any power amp wires from the battery, through the firewall and into the car down the left sill. Keep them far away from the RCAs or you will regret it.

Get a good head unit, one with 4V (4 volts) out mains. These will help quell noise by making the signal stronger and requiring less sensitivity by the amps.

Kenwood, Alpine and Pioneer have heads with 4V outs. Do not get some blingy head with only 2V out, it will ultimately disappoint you... if they cheapen on the output voltage, where else did they cheapen?

I have the Kenwood 797. It's I think been replaced by the 798, but it's a nice head for about $200 with excellent sound.

 

Also, if you are going to gut the system, do it right... remove and replace everything. The wire is just too old, too thin and too lame to be using with high output amps and such. A good 16 gauge auto speaker wire is my experienced advice...

oh, I have been installing car audio for 30+ years. I have been around the block and have been burned by bad ideas...

use good wire, good ground and keep the RCAs away from any power source (I like running mine down centre console, but that's me... Run any power amp wires from the battery, through the firewall and into the car down the left sill. Keep them far away from the RCAs or you will regret it.

Get a good head unit, one with 4V (4 volts) out mains. These will help quell noise by making the signal stronger and requiring less sensitivity by the amps.

Kenwood, Alpine and Pioneer have heads with 4V outs. Do not get some blingy head with only 2V out, it will ultimately disappoint you... if they cheapen on the output voltage, where else did they cheapen?

I have the Kenwood 797. It's I think been replaced by the 798, but it's a nice head for about $200 with excellent sound.[/QUOTE]

 

Thanks for all the great info

Mike