Our PA28 currently with Bournemouth Avionics. For the avoidance of doubt, they're located at Lee-on-Solent, not BOH.
We decided not to go the 450W route as we already have a moving map GPS panel-mounted. We're replacing a lovely Bendix/King KX165 with the only box that will directly replace its function (though needing a new tray and wiring) - Garmin 255A.
We had a 2 1/2 month wait for a slot. If you leave it 'til this time next year, you'll be WAY too late!
TOO