Colorado Kid:
I first swapped out all speakers (Focals in doors and Audio Frogs in dash) and it sounded better but needed more bass and power to the mids. Last spring I installed the Sounds Good rack (the one above is not mine - I dont know why I didn't take pics of my install) with a Audio Integrations Solutions Bose Integration plug and play harness from the Bose to an Audison APF8.9 DSP amp. AIS had great detailed instructions and were very responsive to questions throughout the whole process.
The DSP amp outputs go back into the Bose integration harness and back into the Bose. It keeps door chimes and phone, etc. The subwoofer speaker output from DSP amp goes to a JL Audio 10TW sub in a custom box fits with lots of room under the seat and still keeps most of the storage. This is super simple install.
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I am about to add an Audison AFM1D amp and replace the JL Audio with bigger Morel Powerslim subwoofer and will have to rewire a few things, adding a power distribution block for the two amps, so I will take some pics of every thing. This sub box is also 16" wide but a little taller - it still fits well meeting volume specs. I am excited about the octopuss-style grill on this one one to keep the bottom of seat fabric from sagging down.
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