Installing a Modern Stereo in a 2006 GMC Sierra 1500 morsunled.odoo.com

If your 2006 Sierra has the Bose system, you have two primary options. The first is to use a Line Output Converter (LOC) spliced into the speaker outputs after the factory amp, then run RCA cables to a new amplifier for aftermarket speakers . This retains the factory head unit but limits sound quality due to the Bose amp's processing. The second, preferred option for a full upgrade is to completely bypass the Bose amplifier and tap into the low-level signal directly from the back of the factory radio . Forum discussions indicate that you can grab this un-equalized signal at the radio outputs, then run it to a new aftermarket amplifier that powers all-new door speakers and subwoofers . This approach yields the best sound quality and flexibility. A T-harness can be used behind the radio to avoid cutting any factory wiring, preserving the option to return to stock . For the rear, a Metra 70-2054 harness plugs into the factory amp's output connector, allowing you to use the existing speaker wires running to the doors