Yup, the switch is located at the top right corner of the plastic dash bezel. An exact measurement is in the 1969 Chevelle assembly manual. Hope this helps. My 69 has a manual top..
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69 SS396 69 Malibu Ragtop
70 Monte 72 El Camino
Team Chevelle Gold #33
ACES Member #02913
Chevelle Club of Michigan
Rode shotgun in the ONLY Z16 convertible made.