2007 Nissan Altima w/ Bose

[mt322]

Hey guys, total newbie here. My sister got me a new headunit for my car, but the wiring has me totally lost. The headunit came with a wiring harness but I get no sound when just that is connected, as I believe the harness was designed for the base model without the factory amplified Bose sound system. The car also has two extra connectors that plug into the OEM radio, but I have no idea what they’re for (shown in pictures). I’m guessing one is the RCA to the amp and the other is for steering wheel controls? Either way, I’m at a loss for how I’m supposed to connect those to my headunit. All the research I’ve done has led me to the Metra 70-7553/4 but neither of those include adapters for those two connectors. If anyone has worked on a similar vehicle and could help me out, I would be really appreciative. Thanks!

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[1aespinoza 10+ year member]

If anyone has worked on a similar vehicle and could help me out, I would be really appreciative. Thanks!

The harnesses showing up for your vehicle show one or two adapter plugs. If your car has a separate CD player, then I assume that is what the 3rd plug is for. You may need an updated harness in case you have an OEM amplifier.