look at what photo? wink heaters are in the accessory manual

depends on what heater you have, standard [recirculating] or deluxe or basic dealer model .... I don't recall a support that attaches to the dash on any of the 3, but maybe something in here might help - the heaters all mount to the firewall with long bolts and standoffs, maybe the 'support' you have is for a radio?

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot