Mobile P25 phase 1 & 2 trunked radio decoder

Current BOM (for my custom install)

Note: Some products may differ slightly from my actual install as I bought some things in stores. The wiring configuration using the switches is not included here since that is highly variable from vehicle to vehicle. Constant cigarrette outlet power is assumed here.

Hardware	Specs	Notes / Reasoning	Manufacturer / Supplier	Required	MOQ	Single Unit Cost (pre-tax)
Raspberry Pi 3 Model B+	Specs	Maybe slightly overkill to run op25 on	Amazon	Yes	1	$53.89
5 Inch RPI MIPI DSI Touchscreen	Download specs	Just to display talkgroups, touchscreen functionality not enabled	Amazon		1	$34.99
RTL-SDR v4	Datasheet	Antenna module	Amazon	Yes	1	$39.95
2.4/ 5/ 5.8 GHz SMA Antenna		DO NOT USE, not the right antenna for the frequency range	Amazon	Yes	2	$4.445
Rolls DU30b Audio Ducker	Specs	Audio ducking module to play music through traditional aux while listening	Amazon		1	$109.00
Small Wireless Keyboard with USB-A Male TX		For bugfixing/ configuring only	Amazon		1	$35.99
Cigarette Lighter Male to DC 5.5 x 2.1mm Male		Cigarette outlet power for the audio ducker	Amazon		1	$9.99
Cigarette Lighter Male to USB-A Female	3 amp	Power for the RPI spliced into headliner, REPLACE WITH PROPER POWER MODULE TO AVOID BOOT ISSUES	Amazon	Yes	2	$4.99
Short USB-A Male to Micro USB Male Cable (angled)	9"	Power cable for the RPI, angled for smaller profile in housing, short for modularization	Amazon	Yes	2	$4.49
Short USB 3.0 Male to Female Extension (angled)	8"	USB extender for the RPI to RTL-SDR, angled for smaller profile in housing, short for modularization	Amazon		2	$4.00
SMA Female to Female Socket Connector Panel Chassis Mount		For mounting the antenna internally	Amazon		2	$2.99
Short SMA Male to Male Cable	6"	SMA extender cable, short for modularization	Amazon		4	$1.75
Short 3.5mm Male to Male Cable (angled)	6"	3.mm extender for the RPI to audio configuration, angled for smaller profile in housing, short for modularization	Amazon	Yes* (audio output required someway if not using ducker)	1	$6.99
3.5mm Female to RCA Male Cable	8"	For Raspberry Pi to audio ducker input	Amazon		2	$2.995
USB-C Male to RCA Male Cable	6'	For phone (music) to audio ducker input	Amazon		1	$9.99
RCA Male to 3.5mm Male Cable	6.6'	For audio ducker output to vehicle aux input	Amazon		1	$6.79
Total (optional)						$362.40
Total (required)						$128.68

Pre-built BOM (in progress)

Hardware	Specs	Notes / Reasoning	Manufacturer / Supplier	Required	MOQ	Single Unit Cost (pre-tax)