How do you choose a head unit for your Harley?
This collection carries the SoundStream range for the 1998 to 2013 and 2014 to 2023 Touring platforms, plus selected later carryover models still using the earlier Boom! Box architecture, and the WHD.UNLOC integration kit for retaining a factory Boom! amplifier. If you've seen these units called HDHU, WHD, Reserve or V2 and aren't sure what's what, our head unit name decoder explains every name in the range.
Before You Order
- Feeds a full system: front, rear and subwoofer RCA pre-outs to feed external amplifiers for a proper build.
- Keep the factory amp: the WHD.UNLOC can retain supported factory Boom! amplifiers with the WHD14+, subject to model and audio package.
FAQ
Which head unit fits my Harley?
SoundStream head units cover the 1998 to 2013 and 2014 to 2023 Touring platforms, plus selected later carryover models still using the earlier Boom! Box architecture. The WHD.SG, SG.V2 and WHD.9813 are 1998 to 2013 units, and the V2 and WHD14+ suit 2014 to 2023. Confirm your exact model, since Skyline OS bikes use a different system and do not accept these radios.
Do these head units include navigation?
These units provide phone-based navigation through Apple CarPlay and Android Auto. Selected Reserve models, including the HDHU.V2 and SG.V2, also include built-in offline GPS navigation.
Does the head unit power my speakers?
It powers compatible non-amplified speakers through its internal amplifier, and its RCA pre-outs feed external amplifiers for a louder, cleaner build. A bike with a factory Boom! amplifier needs the WHD.UNLOC or an integration harness to retain it.
What should I add next?
An amplifier and upgraded speakers. See what fits your bike in the model collections, or read Upgraded your head unit, what to do next.