The weird thing is that "1.5 DIN" should be 7" x 3", but that's the size of the chassis, not the face. The 89-91 plastic opening is 7 5/8" x 3 1/4", but almost nobody will post up the dimensions of their kits. The intended installation is with the radio completely behind the plastic bezel, but some adapters are too thick for that. That's how I ended up with the cut adapter above - it was more like 8 1/2" wide. My Kenwood is 7 3/8" wide, so the adapter can only be 1/8" on each side, because that style is designed to stick out into the plastic opening.
| Type | Height | Width |
| Single DIN | 2 inches | 7 inches |
| Double DIN | 4 inches | 7 inches |
| 1.5 DIN (Din-and-a-half) | 3 inches | 7 inches |
This is the Retrosound radio, which may be the only 1.5 DIN left. They claim it fits, but I can't find any reports of how it fits in a square.
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EDIT: If anybody knows how to change column widths in a table, please let me know.