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Wiring

Posted by deyannn on Mar 15, 2016; 12:32pm
URL: http://bluesaab-forum.90.s1.nabble.com/Wiring-tp268.html

Hi all,

what sort of wiring do you do on your cars?
On my 9-3 I used just a regular Cat5E FTP cable I had lying around, 1 wire each for Left,Right,RX,TX,GND,+5V with 2 cables not being connected to anything.

I wonder if it will be a waste of money and resources if I use stranded cable for Left/Right/GND instead of the solid cables in the FTP cable. Or wether using 2 cables in a twisted pair instead of one will have negative or positive effects.

Since I'm rather noobish and amateur at electrical works I don't fully understand cable capacity, resistance, how it changes when bi-wiring and what sort of inference can occur from bi-wired twisted pairs  or a twisted pair where 1 solid cable is Audio Reft and the other is Audio Right, etc. Or in cases where some of the following examples come into play (all on regular Ethernet cables ).

Example 1:
Pair 1:Left / Right
Pair 2: RX/TX
Pair 3: DC5+/DC5+
Pair 4: GND/GND

Example 2:
Pair 1: Left / Right
Pair 2: RX /TX
Pair 3: DC+5V/GND
Pair 4: empty

Example 3:
Pair 1:Left / Right
Pair 2: RX/TX
Pair 3: DC+5V/empty
Pair 4: GND/empty

Example 4:
Pair 1:Left / GND
Pair 2: RX/TX
Pair 3: Right /GND
Pair 4: DC+5V/DC+5V

At times when trying to decide something like this I wish I had a degree in electrical engineering or something similar.
9-5 Aero MY01 ; previously owned 9-3 2.2 tid MY99