To determine the ID that is needed please take a measurement as shown in the photo.
Sold as a pair, these adapters are for upgrading the speakers in the the front doors of 2019 VS30 Sprinter vans. The factory door panel and speaker grill is retained for a stealth factory look. This is a crucial step to enjoying better sound quality in your van.
The adapters were designed in 3D CAD and they are machined on a CNC router. Material for the adapters is ~1/4 thick ABS. It won't absorb moisture like MDF or wood and holds screws well without splitting. The holes in the adapter are perfectly located and countersunk to mount over the factory posts and be secured with the original screws. Double sided 3M VHB tape also helps to secure and seal the adapter to the back of the door panel. Locating pocket for OEM speaker must be trimmed from back of door panel. See photo. Drill holes in the adapter ring for your speakers and secure them with sheet metal screws.
We highly recommend installing 3M Thinsulate(TM) behind the door panel at the same time. Each adapter is also available with 3 linear feet of 3M Thinsulate(TM) automotive grade acoustic/thermal insulation.
While shopping for speakers look for 6 1/2 or 6 3/4 speakers. The depth available is limited to 2.25" so choose speakers with top mount depth plus adapter thickness that is less than this distance. Please send a link to the speaker you are considering and we will determine if it will fit. COAX are the best bang for your buck and component speakers are potentially the best sound but involve replacing the dash tweeters and installing a crossover.
A few speaker recommendations and adapter size:
JL Audio C1-650x adapter size 5.3125
Kicker 43DSC6504 adapter size 5.3125
Infinity Reference REF-6532ex adapter size 5.3125
JBL Concert Series 601CF adapter size 5.625
JBL Concert Series 621F adapter size 5.625
JBL Club 6520 adapter size 5.500
For wiring, the grey and white stripe wire is positive on both speakers.
Please also consider our wall mount sub woofer panel for improved bass response:
For Alpine PWE-S8 powered sub: https://www.ebay.com/itm/132656785513
For 10" Free Air sub woofer with separate amplifier: https://www.ebay.com/itm/131656241571
If you have questions or require technical support regarding this or any of our products then please call Hein at 541-49O-5O98