Use the TeraFlex JL 4xe: Alpha Speaker Bracket Kit to retain the rear speaker in the factory Pedestrian Warning System of your JL Wrangler Unlimited 4xe (4-door plug-in hybrid) with Alpha HD Spare Tire Carrier Mount Kit.
The Pedestrian Warning System features an exterior speaker at each end of the JL Wrangler Unlimited 4xe (one in the right front wheel well and one behind the factory spare tire carrier) to warn pedestrians that the plug-in hybrid vehicle is running.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product

fitment_info=- JL Wrangler Unlimited 4xe (4-door plug-in hybrid) w/ Alpha HD Spare Tire Carrier Mount Kit,height=5,installation_time=1-2 Hours,length=7,product_image_size=Default,product_notes=- Alpha Speaker Bracket Kit (# 4838290) REQUIRES Alpha HD Hinged Spare Tire Carrier Kit (# 4838900) (w/ 5x5'' Mount Kit: # 4838920) or Alpha HD Adjustable Spare Tire Mount Kit (5x5'': # 4838910) (8x6.5'': # 4838940) ''" NOT INCLUDED.,sw_featured=No,width=5