Tony, I would not use the glove box, I would use this radio

http://www.radiosforoldcars.com/newradio0F.htm

NEW Repro Radios

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1967-68 Chevrolet Camaro and Pontiac Firebird AM/FM/Stereo radio
Specifications

Small size, BIG features,
Rare option!

Looks original but
offers today’s technology

Quality Die-cast Chrome faceplate and knobs exactly match original radio!

Click to see larger pictures

Fits your dash without any modifications!

Includes dash plate as shown!

4 × 45 watts RMS output allows up to 180 watts of audio power!

Green AM/FM dial scale looks like original!

AM or FM band selected with slide-bar like original!

Analog controls look and feel like the original radio!

All controls easily accessible. Volume, bass, treble, balance, fader and tuning
from original-looking controls!

MP3, IPOD, CD or XM (satellite) inputs included!

7/16” shafts for mounting exactly match original radio!

LED dial lights will never need replacing!

Digitally tuned AM/FM/Stereo front end provides stable, high quality reception!

All installation hardware and instructions included


1967-68 Chevrolet Camaro and Pontiac Firebird AM/FM/Stereo radio

$595.00

 

Here is the same radio a little cheaper on ebay with free shipping

http://www.ebay.com/itm/1967-68-Che...-/200487059602?hash=item2eadf5c092&item=200487059602&pt=Car_Audio_Video&vxp=mtr

 

Or mount your radio in the trunk and use the remote control.

 

I have the VA Gen IV in my 68. Found the new small glove box too small to properly mount an aftermarket unit. Suggest using one of the many aftermarket units that fit directly into your current radio slot. Some look similar to the factory setup, and are cheaper than that unit from Florida. I'm in the process of wiring mine, which will have an IPOD + jack/charger cable in the ash tray, and the XM radio 12V & cradle in the glove box.

 

I used a standard DIN mount in my '68. The back has to stick through the rear of the glove box a bit. Used a marine mount and an infrared repeater (PAC IR-X) so I can control it with the door closed. Out of sight and works great. Original AM is in dash for looks.

 

Jim, were you able to do this with a vintage air installed?