QuestionHi. Last year i bought a cd/radio player for my corolla when my previous one died. I got my mechanic to install it. Unfortunately, he only connected the front speakers.
I removed the radio and examined the wires. They were all connecting into a socket with 9 connectors. There were 6 wires going in, namely:
+12V
Ground
R. Front Speaker(+)
R. Front Speaker(-)
L. Front Speaker (+)
L. Front Speaker (-)
Logic would tell me that i need another 4 connections, namely:
R. Rear Speaker(+)
R. Rear Speaker(-)
L. Rear Speaker (+)
L. Rear Speaker (-)
However, there are only 3 more connections available on the 9 socket connector.
There is, however, another single connector that is seperate to the 9 connector. I'm confused as to what thats for.
Could you offer any advice?
Regards,
Michael.
AnswerThis webpage should help;
http://www.installdr.com/Harnesses/Toyota-Wiring.pdf
If yours if different, then you can still test with a 1.5 volt battery (AA or AAA) with a wire soldered onto each end. I strip back 1cm on the end of the wire, and solder it just so it does not fray, and makes a good testing connection. Then you can touch the battery leads across a pair of wires to see if they are speaker leads. It should produce a crackle. If the speaker moves out, you polarity (+ and -) is correct. If it moves inwards, your polarity is backwards.
