Wiring diagrams

[08cadyswap]

So I am doing an escalade dash swap in my 2008 silverado, now for the wiring that goes thru the fire wall, the guy cut 2 bundles of wires witch I don't know what they are for, they don't go into the fuse box and they are not for the windshield wipers, it would help knowing what they do 

[slj2008]

17 hours ago, 08cadyswap said:

So I am doing an escalade dash swap in my 2008 silverado, now for the wiring that goes thru the fire wall, the guy cut 2 bundles of wires witch I don't know what they are for, they don't go into the fuse box and they are not for the windshield wipers, it would help knowing what they do 

Follow the wire , see where it goes. After market sound system or a wire Hardness use my emergency units (police/fire/ems) . check the wires for writing on them ( siren/horn/speaker/ect.)