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**hatzie** · 08-07-2020, 08:11 PM

Plugging into a circuit in these newer rigs without knowing what it's fused for and what else is on that circuit is generally a very bad idea.
Depending on what you damaged it may end up that it would've been less expensive to just replace the PAC module with a new one that works properly.

IIRC. There's a 10A ignition switched circuit that's intended for aftermarket accessories in the SEO plug position of the Mid BEC down next to the column on the firewall. You can find info on the Mid BEC plug pinouts in the GM upfitters guides.

Do you have a picture of the junction block you tapped in at? I may be able to find the pinouts and possibly a fuse location in the service manual but I don't really know what you did.

08-07-2020, 08:11 PM	#22
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,916	Re: After market stereo Plugging into a circuit in these newer rigs without knowing what it's fused for and what else is on that circuit is generally a very bad idea. Depending on what you damaged it may end up that it would've been less expensive to just replace the PAC module with a new one that works properly. IIRC. There's a 10A ignition switched circuit that's intended for aftermarket accessories in the SEO plug position of the Mid BEC down next to the column on the firewall. You can find info on the Mid BEC plug pinouts in the GM upfitters guides. Do you have a picture of the junction block you tapped in at? I may be able to find the pinouts and possibly a fuse location in the service manual but I don't really know what you did. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful. Last edited by hatzie; 08-07-2020 at 08:16 PM.