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I would like to splice into the speaker wires in my 2006 CR-V EX (adding after market equipment; already have speaker-level to line level converter, etc). Where's the easiest place to access them (i.e., since the OEM speakers are in the doors, is there easy access to the wires somewhere in the cabin?) Just looking for answers relating to where the wires can be accessed; not looking for general car stereo advice, etc. Thanks in advance.