2 Port USB

I use this dual port flush mount usb adapter to replace the ashtray in the 737 Sidewall

https://www.ebay.co.uk/itm/Dual-USB-3-0-Extension-Dash-Flush-Mount-Dashboard-Panel-For-Car-Boat-Motorcycle/232270418712?epid=633539112&hash=item3614655318:m:mqv5KubHtM2ULAvuld6MAuw