I just recently replaced my entire Bose system with Alpine and it was surprisingly easy. Here is the summary:
1. Replaced Bose HU with an Alpine double din GPS/DVD unit.
2. Ran RCA connectors under the driver seat for six channels.
3. Replaced door speakers with Alpine Reference components. I used the existing speaker wire in all locations.
a. Make sure you put a dampening material on the inside of the doors once the old speakers are removed. I used "Stick and Seal" from Lowes.
4. Replaced the amplifier with an Alpine PDX-V9 five channel unit. I disconnected the factory subwoofer and ran wire to the back for a new sub.
a. The alpine fit perfectly in the existing bracket used for the Bose amplifer. Just had to flatten out some of the sheet metal. I used a strong velcro to keep it in place.
5. Removed the third row seats and installed a Kicker pro series 10" subwoofer facing down. I then built a wood enclosure to fill up the dead space and covered it all with a cargo mat. All my trunk space is available.
This system is 1000% better! I highly recommend scapping all of the old Bose stuff and replace it with something comparable to Alpine. You will be much happier. Also, I did this in phases so it was easier on the wallet.
