VHF need to wire through a relay (195 Sport)

[cbjr]

Hi,

I just installed a VHF hooked it to the underdash power block in and empty accessory slot then decided it would be better to put the unit on a relay so I don't leave it on and flatten the battery.

I was hoping for some input on finding a safe point to tap into for the coil side of the relay under the dash.

TIA,
Chuck