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I have a need to get a pair of wires from the engine bay and into the cabin of my series 3 RX450h (63-plate).

Has anyone done this before? Are there any existing holes or grommets that I can utilise or will I have to drill a hole through the bulkhead firewall?

While Googling for images and information about this I came across the following statement in a forum somewhere:

Quote

I guess be thankful you're not working on a Lexus with a pressurized firewall bulkhead filled with sand.. you'd end up with beach front property on your floorboard.

That's not what I expected to be reading!

Does anyone know anything about that? Should I be worried?

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Herbie - - -

I am sorry - - - I cannot help with any reasonable information on this - - -

But will this help?

 

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There is often a multi-hole grommet fitted in the bulkhead in the junction with the inner wing on the same side as the engine bay fuse box, to allow the main loom through

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