Audio & Subwoofer upgrade / install questions for RAV4 2014

[toyotathebest]

Hi,

I've gone and bought an Active Subwoofer for my Toyota RAV4 2014 (Business Edition). It's going to go where the spare tyre is currently located. Whilst I'm waiting for it to arrive, one of things I believe I need to do is to tap into the sound output for my factory stereo.

Can anyone please provide any guidance on which wire I need to tap into? Any links to photos or videos would be greatly appreciated.

Thanks.

[flash22]

2014 will be Toyota 10+6

 

[toyotathebest]

1 hour ago, flash22 said:

2014 will be Toyota 10+6

 

Hey @flash22 

Thanks very much for your prompt reply.  Am I right that I can use any of the speaker outputs for the Subwoofer or does it need to be a specific wire?

Also apologies, but I have a couple more questions:-

1. How do I find and get through the firewall from engine to inside of car (either glove compartment or driver-side?)

2. How do I route any wiring that needs to run from back of vehicle ot the front?

Much appreciate your help.