Automotive RepairInstallation & Assembly3MediumSolo Operator$ implied
Need a 12V 3-leg relay to automatically control radiator fans triggered by the radio's remote line, replacing a manual switch that failed.
Standard automotive relays either lack remote trigger capability or are not easily found with the required specifications (80W, 3-leg, 12V, remote signal detection).
47
0
Opp. Score
47
Severity
3Medium
Willingness to Pay
implied
Added
May 12, 2026
Workarounds Described
- manually wired fans to a switch that needs to be turned on every time
- relied on a patched-together harness for years
Implied Software Gaps
- Relay specification search tool that allows filtering by electrical parameters and vehicle compatibility
App Concept
RelayFinder Pro
An online tool and marketplace that helps DIY auto mechanics and technicians find the exact relay by specifying voltage, leg count, power rating, and trigger type. It lists compatible parts from multiple retailers and shows wiring diagrams.
Key Features
- Search by electrical specs (voltage, legs, wattage, trigger type)
- Cross-reference with vehicle make/model/year
- Show wiring diagrams for common applications
- Compare prices from multiple suppliers
Target Users: DIY car owners and small auto repair shops working on custom or non-standard electrical installations.
Revenue Model: Freemium with $5.99/month for unlimited searches and vehicle database access; affiliate commissions on parts purchased.
Part of App Idea
Need a 12V 3-leg relay to automatically control radiator fans triggered by the radio's remote line, replacing a manual switch that failed.Want to go deeper?
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