Wiring a Lexus RX300 for subs

[Mmba Loopa]

PLEASE!!!! Someone here's gotta know how to wire a RX300 for subs....i tried but the crap is just too confusing...i don't know how to get into my factory in-dash...i have all the equipment already i just need a little guidance....PLEASE SOMEONE HELP ME!!!!!

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[Bumpin_Ack 10+ year member]

Every car is going to be basically the same for subs. You need a power wire running from you battery back to your amp (with an inline fuse very close to the battery) Then you'll need to ground your amp with a wire that is no longer than 2feet(ideally.) Then you'll somehow need a signal going to your amp. If you have an aftermarket headunit (cdplayer) you can run rcas from the pre outs. Otherwise its sounds like you have a stock cdplayer. In that case you'll need to tap directly into your rear speakers. This process differs slightly from amp to amp. YOu'll either need a high-low converter, or if your amp supports high level input, just wire your rears speakers directly to that.