Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Soundstream VIR7355NRBT 7-Inch Wide Double Din Monitor (Black)
Product description: 7" Wide Touch Screen EXACT Double-din In-Dash Motorized TFT Monitor/DVD/AM/FM with Bluetooth
Product feature: Bluetooth & Navigation Input(Requires NAVIBOX-1) 7 Wide Touch Screen EXACT Double-din In-Dash Motorized TFT Monitor/DVD/AM/FM, Motorized TFT-LCD w/ 4 Pre-Set Angles & Last Angle Memory Car-Spec DVD Transport for Extreme Temperature Exposure Playback from DVDR/RW & CDR/RW Including VCD MP3 MP4 & DiviX, Recall Memory for Last DVD Position i-Pod Input Connection (requires IC-1) Mini-USB Connection for MP3 & MP4 Playback From 4gb Flash Drive SD Card Reader for MP3 MP4 DiviX & Xvid Playback, A/V Outputs for Multiple Components A/V Inputs for Secondary Source Front Panel 3.5mm Auxiliary A/V Input Reverse Camera Input w/ Trigger, 18 FM / 12 AM Station Memory 50w x 4 MOSFET Powered Speaker Level Outputs Front & Rear Pre-Amp Outputs Variable Subwoofer Pre-Amp Output w/ LPF (80 120 160Hz)
Product brand: Soundstream
Target attributes: DIN
Answer: attribute: din
value: double din
source: product title
attribute: din
value: double-din
source: product feature
attribute: din
value: double-din
source: product description