https://www.ebay.com/itm/Hosa-Stereo-1-8-3-5-mm-Male-to-Dual-Mono-1-8-Female-Y-Cable-YMM-261-Adapter/323262785616?epid=1900117143&hash=item4b43f6a850:g:plQAAOSwxupa~zfa You will likely have to build your own 40db pad --- its two resisters. Bill