986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Need to get some wires from battery area to interior

Marc_986 · 05-06-2026, 12:08 PM

As the title suggests, I need to get a few wires from the frunk and battery area into the interior. Frunk to battery is easy, so let's focus on battery to interior.

Original loom has three entry points, one left, one right and the battery positive. Left and right ones are completely molded, the only way I found to get wires out (or in for that matter) is to destroy it. So I don't want to do that for the additional wires I need to run (any wires I don't need anymore might as well be left in place).

So I am looking for suggestions on a place to get some wires in. It should be accessible from both sides (that is probably the difficult part). And on top, any suggestions on rubber parts to nicely fill the hole again would be nice (I don't know the english term, but would be looking for a rubber feedthrough which either is quite tight already or can be filled with rubbery stuff).

The wires I need to run:
- +12V power steering pump to main circuit breaker box (the white box directly behind the +12V battery connection)
- Brake signal switch (I have only one signal now, ABS 5.7 requires both the NO and NC contacts)
- +12V fused for the ABS (so to the regular fuse box)
- CAN signal pair of ABS unit (will end up in rear trunk for Audi ECU

I might have missed one, but I guess these are the main. So not that many, but still some to feed through. Thanks for any pointers. Will also look in my wreck to judge locations, but I'm sure someone has done something similar already (radio wires or what).

05-06-2026, 12:08 PM	#1
Marc_986 Registered User Join Date: Aug 2023 Location: Netherlands Posts: 240	Need to get some wires from battery area to interior As the title suggests, I need to get a few wires from the frunk and battery area into the interior. Frunk to battery is easy, so let's focus on battery to interior. Original loom has three entry points, one left, one right and the battery positive. Left and right ones are completely molded, the only way I found to get wires out (or in for that matter) is to destroy it. So I don't want to do that for the additional wires I need to run (any wires I don't need anymore might as well be left in place). So I am looking for suggestions on a place to get some wires in. It should be accessible from both sides (that is probably the difficult part). And on top, any suggestions on rubber parts to nicely fill the hole again would be nice (I don't know the english term, but would be looking for a rubber feedthrough which either is quite tight already or can be filled with rubbery stuff). The wires I need to run: - +12V power steering pump to main circuit breaker box (the white box directly behind the +12V battery connection) - Brake signal switch (I have only one signal now, ABS 5.7 requires both the NO and NC contacts) - +12V fused for the ABS (so to the regular fuse box) - CAN signal pair of ABS unit (will end up in rear trunk for Audi ECU I might have missed one, but I guess these are the main. So not that many, but still some to feed through. Thanks for any pointers. Will also look in my wreck to judge locations, but I'm sure someone has done something similar already (radio wires or what).