I was thinking. If I were to come across, say a '96 960 wagon in a junkyard with a perfect interior. How much of it could I swap over? I'll assume the seats will fit, but what about the door panels? And even if they fit, would the window switches and stuff plug to my stock wiring ok?

Oh yeah and another thing. Would the ECC panel plug right into my car's HVAC system instead of my standard 3-knob auto a/c panel? They look similar, but I guess that dosent mean much :)
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'91 Volvo 740 wagon. A big comfy box.... and a '90 Mazda 626 GT turbo. Heavily modded, really fast.

Most everything would fit. There are differences with the ECC but you could resolve them with the schematic and service manual for the ECC. Most of the interior bits would fit, except for some rear seat things. The rear of the 740 and 940/960 is higher and the back seat is higher to accomodate that. The padding around the rear quarter windows is different too. The door panels are a little different since the 740 uses the handle in the door pocket which pulls back, well you know, and the 960 uses a different arrangenet. You could adapt that or swap the doors. There are a few other differences though.

I can take a few pics if you like. My 740 is gone but since you have one you could see the differences.

The wagons are pretty much the same.

The 960 uses a covered trim around the doors and windows too.
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Warren Bain - '99 V70GLT G-Valve > 70K mi, '96 965 >110Kmi Wifemobile near Manassas Va.. Check the 700/900 FAQ via the 'features' pull down menu.

Thanks for the info. I'm mostly concerend about the seats. The 960 seats look soooo nice. How hard would it be to adapt the 960 rear seat to the 740?
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'91 Volvo 740 wagon. A big comfy box.... and a '90 Mazda 626 GT turbo. Heavily modded, really fast.

depends on the year of your 740. If your car is before '88, they won't fit at all.

Now that I actually looked at your sig line, the wagon rear seats are the same. You'll like the nice soft leather. I can send some pics if you'd like.
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Warren Bain - '99 V70GLT G-Valve > 70K mi, '96 965 >110Kmi Wifemobile near Manassas Va.. Check the 700/900 FAQ via the 'features' pull down menu.