Thats weird, my alpine has the normal bracket that it came with in the slot just fine.

When my brother had his 190E, we put a kenwood pull out in there and it worked just fine with no mods either.

I would do a bit of filing if needed.

Sometimes it might be a tight fit, but tight fit is ok by me.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U